The site itself covered an area of grassy sandbank of about
4 km2, sloping gently from east to west. Roughly
rectangular in shape was the Jamboree Camp headquarters, Subcamp
#11, Chūō, in the center of the site.

Medical facilities at the Jamboree were operated by the United States
Army and Air
Force. Other facilities at the Jamboree were a Skill-o-Rama and
Exhibits service center and a large Trading Post.

In the opening days of the jamboree the Scouts played a 'wide
game' in which each Scout was given a Japanese character on a colored card worn
around the neck. At a signal the Scouts would fan out over the
jamboree site looking for the other characters which would spell
out the jamboree theme, 'For Understanding'. The Scouts who
accomplished this feat then proceeded to a station to have their
cards validated with a stamp.